Mark_Aurel

Skeet Shooting Kill 4 enemies in 1 shot with the Super Shotgun.

Overprepared Finish a level with 200% armor and 200% health.

DOOM Reach the end of 'DOOM'.

Cookin' With Plasma Kill 5 enemies in 5 seconds with the Plasma Rifle.

Overkill Kill only a single enemy with a BFG9000 blast.

Shoot It Until It Dies Finish off a Cyberdemon with the Pistol.

Until It Is Done Get 100 Chainsaw kills.

Heavenly Joy Shoot 200 bullets consecutively with the Chaingun.

Guns Are For Wusses Get 25 kills with your Fists in a single level.

A Man and a Half Get 20 kills using the berserk powerup in a single level.

Bowling for Gibs Gib three or more enemies with a single rocket explosion.

Doormat Crush a corpse in a door.

Hoarder Finish a level with 100% items picked up.

Burning Out of Control Complete any monster-filled level with 100% kills, items, and secrets.

Timing Is Everything Kill 2 enemies with a single barrel explosion.

Groovy Get 3 multi-kills with the Shotgun.

The Only Thing They Fear Is You Complete any monster-filled level with 100% kills without getting hurt on Ultra-Violence or higher.

Clean Slate Kill all monsters in any monster-filled level on 'Hurt me plenty' or higher.

An Important Looking Door Find a secret area.

Not So Friendly Fire Cause an enemy to kill another enemy.

More Like a Dream Complete a level on Nightmare difficulty.

The End They’re not us!

Your Expressway to the Stars Reached the Omega Space Gun

Endangered Species Met the last person left alive

A New You Changed body at Omicron

Killed the Dream I Dreamed Escaped Theta

Plan B Failed at acquiring the DUNBAT

The DUNBAT Discovered Theta

Stranded Crash-landed on peak Delta

Chasing Catherine Discovered Lambda

Answering the Call Talked to Catherine Chun

End Game Finished Final Showdown

The Only True Stopper Headshot Every Type of Enemy

Dragon Slayer Kill 25 Dragons

Derp Jump Down from 50 Meters

Tooled Up Own all Weapons Attachments

Nice Like Jesus Finish all the Hostages Situations

Way to Go, Garri-Son Finish all the Garrisons

Hail to the King Reach Maximum Level and Become the Ultimate Badass

The Drug of the Nation Find all TV SETS to Decrypt the Hidden Message

What are You Reading For? Find all of Dr. Carlyle's Notes

Set Them Free Destroy 5 Braincages

The Greatest Format of all Time Find all VHS Tapes

Kill Them All Finish all the Predator's Path

Murder Nature Kill all the Animal Types

Just the Tip Kill a Dragon with the Bow

Blood Dragon Down Kill Your First Dragon

Running man After saving Darling, enter Combat Mode with a Dragon and Return to Stealth

One Small Step Finished First Garrison

Welcome to the party, pal Finished Helicopter Entry